consumption_tax_rates.csv
  combined state and local tax rates for 2013 from Tax Foundation
  http://taxfoundation.org/article/state-and-local-sales-tax-rates-2011-2013

gtap_to_sage.csv
  mapping of GTAP sectors to sage sectors

hertel et al - GTAP v7 - behavioral parameters - table 14-2.csv
  armington elasticity parameters from hertel et al. (201X)
  used by build/build_paramters.R

income_tax_rates.csv
  combined federal and state average marginal personal income tax rates for 2013
  from NBER TAXSIM
  http://users.nber.org/~taxsim/marginal-tax-rates/at.csv

koesler and schymura - 2015 - klem elasticities.csv
  klem subsitution elasticities from koesler and schymura (2015)
  used by data/build_paramters.R

nace_to_sage.csv
  maps nace sectors to sage sectors
  used by build/build_paramters.R

nems_to_sage.csv
  maps nems sectors to sage sectors
  used by build/build_paramters.R

oil_and_gas_data.gms
  data used in disaggregating the oil and gas extraction sector in implan
  created by build/get_oil_and_gas_data.R
  used by build/build_benchmark.gms

population_data.gms
  population for each representative household by state
  created by build/get_population_data.R
  used by build/build_benchmark.gms

state_info.csv
  relates state fips codes and padd numbers to abbreviations
  used by build/get_oil_and_gas_data.R
